private Root GetRootModelFromBuild(Build b)
 {
     var server = new Isop.Server.IsopServerFromBuild( ()=> b );
     var data = JsonConvert.SerializeObject(server.GetModel());
     var client = new IsopClient(new JsonHttpClientThatOnlyReturns(data), "http://localhost:666");
     return client.GetModel().Result;
 }